Measurement Of The Top Pair Production Cross Section In The Dilepton Channel In Proton Antiproton Collisions At Square Root S

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Measurement Of The Top Pair Production Cross Section In The Dilepton Channel In Proton Antiproton Collisions At Square Root S

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Author : Mircea Norocel Coca
language : en
Publisher:
Release Date : 2005

Measurement Of The Top Pair Production Cross Section In The Dilepton Channel In Proton Antiproton Collisions At Square Root S written by Mircea Norocel Coca and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1995

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.

Measurement Of The Tt Production Cross Section In Pp Collisions At Square Root S

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Author : Heather L. Ray
language : en
Publisher:
Release Date : 2004

Measurement Of The Tt Production Cross Section In Pp Collisions At Square Root S written by Heather L. Ray and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

Proceedings Of The Xxvii Int Conference On High Energy Physics 21 27 July 1994 Glasgow Scotland Uk 2 Volume Set

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Author : BUSSEY
language : en
Publisher: CRC Press
Release Date : 1995

Proceedings Of The Xxvii Int Conference On High Energy Physics 21 27 July 1994 Glasgow Scotland Uk 2 Volume Set written by BUSSEY and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Art categories.

This two-volume set contains the invited and contributed papers from the 1994 'Rochester' Conference on High Energy Physics, held 20-27 July 1994 in Glasgow, Scotland. This most prestigious of the international conferences on elementary particle physics brought together over 1000 researchers in the field from leading universities and research centres in 47 countries throughout the world. The volumes contain over 250 contributed papers from the parallel sessions of the conference giving details of latest research results in all areas of the subject. These and other recent results were collected and reviewed by the speakers in the 24 plenary sessions, whose talks were subsequently written up in a definitive way and assembled here. These reviews give a comprehensive and state-of-the-art coverage of the entire field in 1994. Important topics include the latest experimental results from electron-proton collisions at HERA and electron-positron collisions at CERN. Of special interest is the first concrete experimental evidence for the 'top' quark, found in proton-proton collisions at Fermilab. This quark completes the set of six that are predicted by the Standard Model, and its confirmation will mark a decisive moment in the history of physics. This book is an essential reference for libraries and researchers in high energy physics, nuclear physics, astrophysics and mathematical physics.

Measurement Of The Top Pair Production Cross Section In The Dilepton Decay Channel In Ppbar Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2010

Measurement Of The Top Pair Production Cross Section In The Dilepton Decay Channel In Ppbar Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.

A measurement of the t{bar t} production cross section in p{bar p} collisions at √s = 1.96 TeV using events with two leptons, missing transverse energy, and jets is reported. The data were collected with the CDF II Detector. The result in a data sample corresponding to an integrated luminosity 2.8 fb−1 is: [sigma]{sub t{bar t}} = 6.27 ± 0.739(stat) ± 0.63(syst) ± 0.39(lum) pb for an assumed top mass of 175 GeV/c2.

Physics Briefs

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Author :
language : en
Publisher:
Release Date : 1992

Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Physics categories.

Measurement Of The Mathrm T Bar T Production Cross Section In The Mathrm E Mu Channel In Proton Proton Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2016

Measurement Of The Mathrm T Bar T Production Cross Section In The Mathrm E Mu Channel In Proton Proton Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.

The inclusive cross section for top quark pair production is measured in proton-proton collisions at √s = 7 and 8 TeV, corresponding to 5.0 and 19.7 fb-1, respectively, with the CMS experiment at the LHC. The cross sections are measured in the electron-muon channel using a binned likelihood fit to multi-differential final state distributions related to identified b quark jets and other jets in the event. The measured cross section values are 173.6 ± 2.1 (stat)+4.5-4.0 (syst) ± 3.8 (lumi) pb at √s = 7 TeV, and 244.9 ± 1.4 (stat)+6.3-5.5 (syst) ± 6.4 (lumi) pb at √s = 8 TeV, in good agreement with QCD calculations at next-to-next-to-leading-order accuracy. The ratio of the cross sections measured at 7 and 8 TeV is determined, as well as cross sections in the fiducial regions defined by the acceptance requirements on the two charged leptons in the final state. The cross section results are used to determine the top quark pole mass via the dependence of the theoretically predicted cross section on the mass, giving a best result of 173.8+1.7-1.8 GeV. Furthermore, the data at √s = 8 TeV are also used to set limits, for two neutralino mass values, on the pair production of supersymmetric top squarks with masses close to the top quark mass.

A Measurement Of The Production Cross Section Of Tt Pairs In Proton Antiproton Collisions At Square Root S

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Author : Henri Bachacou
language : en
Publisher:
Release Date : 2004

A Measurement Of The Production Cross Section Of Tt Pairs In Proton Antiproton Collisions At Square Root S written by Henri Bachacou and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

First Measurement Of The Cross Section For Top Quark Pair Production In Proton Proton Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2011

First Measurement Of The Cross Section For Top Quark Pair Production In Proton Proton Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.

The first measurement of the cross section for top-quark pair production in pp collisions at the LHC at center-of-mass energy sqrt(s)= 7 TeV has been performed using 3.1 {\pm} 0.3 inverse pb of data recorded by the CMS detector. This result utilizes the final state with two isolated, highly energetic charged leptons, large missing transverse energy, and two or more jets. Backgrounds from Drell-Yan and non-W/Z boson production are estimated from data. Eleven events are observed in the data with 2.1 {\pm} 1.0 events expected from background. The measured cross section is 194 {\pm} 72 (stat.) {\pm} 24 (syst.) {\pm} 21 (lumi.) pb, consistent with next-to-leading order predictions.

Measurement Of The Inclusive T Bar T Production Cross Section In P Bar P Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2016

Measurement Of The Inclusive T Bar T Production Cross Section In P Bar P Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.

The inclusive cross section of top quark-antiquark pairs produced in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV is measured in the lepton+jets and dilepton decay channels. The data sample corresponds to 9.7 fb-1 of integrated luminosity recorded with the D0 detector during Run II of the Fermilab Tevatron Collider. Employing multivariate analysis techniques we measure the cross section in the two decay channels and we perform a combined cross section measurement. For a top quark mass of 172.5 GeV, we measure a combined inclusive top quark-antiquark pair production cross section of [sigma]$t\bar{t}$=7.26±0.13(stat)$+0.57\atop{-0.50}$(syst) pb which is consistent with standard model predictions. We also perform a likelihood fit to the measured and predicted top quark mass dependence of the inclusive cross section, which yields a measurement of the pole mass of the top quark. The extracted value is mt=172.8±1.1(theo)$+3.3\atop{-3.1}$(exp) GeV.